Corn-planter



A. HEARST. CORN PLANTBR.

(Model.)

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il Ill Patented July 1, 1890.

UNITED STATES PATENT OEEICE.

ALEXANDER HEARST, OF PEORIA, ILLINOIS.

CORN-PLANTER.

v SPECIFICATION forming part of Letters Patent No. 431,053, dated July 1, 1890.

Application filed October 5, 1889. Serial No. 326,110. (Model.)

To all whom t may concern.-

Beit known that I, ALEXANDER HEARsT, residing at Peoria, in the county of Peoria and State of Illinois, and a citizen of the United States, have invented a new and useful Improvement in Corn-Planters, of which the following is a specification, reference bcing had to the accompanying drawings, in which- Figure 1 is a plan showing the devices in the position which they occupy when the sliding bar which carries the operating-pawls has been moved in one direction to its limit. Fig. 2 is a plan showing the position which the paris occupy when the stop has been thrown back by the movement of the seed-plate.

Fig. 3 is a plan of the sliding bar which carries the pawls, the pawls also being shown. Fig. 1.- is an end view. Fig. 5 is a section at line 5 of Fig. l. Fig. 6 is a vertical section through the stud which carries the stop, showing also in section the sleeve of the stop, the section being taken at line 6 of Fig. 4t.

The leading objects of my improvement are to provide an improved stop for the seed-plate and an improved combination and arrangement of the pawls which actuate the seedplate, which I accomplish as illustrated in the drawings, and hereinafter described.

That which I claim as new will be pointed out in the claims.

In the drawings, A represents the lower frame or base-plate, which supports the seeddropping devices.

a is a plate, which may be regarded as a .part of the frame A, which plate a is cast with the remaining part of this frame, and is in about the same plane as the side pieces b, to which the seed-box is secured. This plate a is provided with a central stud c and with an opening through which the seed falls, which opening is indicated by dotted lines in Figs. l and 2. (l are slots in this plate ct, through which the operating ends of the paWls pass. The frame is similar to, but not exactly like, that shown in a former patent granted to me, No. 228,258, dated June l, 1880, and the construction will be understood from the drawings without further description.

-Bis a seed plate or disk, provided, as shown, with ten holes e to receive the seed. Its periphery is also provided with ten teeth f,

which, as shown, are concave on one side and convex on the other side.

C is a sliding bar, which carries the pawls, the form of which bar is shown in Fig. 3.

D is a gravitating pawl supported on a stud g, which extends out from the ear or flange h, which extends upward from the bar C. E is another gravitating pawl supported on a similar stud.

t' fi are the operating ends of the pawls, which extend upward through the slots d. The pawls are arranged beneath the plate Ct, and their operating ends pass under the teeth of the seed-plate and are returned to operative position by gravity.

j is a slot in the base-plate A. The sliding bar C is provided with depending lugs It, which enter such slot and serve as guides.

Z is a projection on the under side of the bar C, which serves as a stop to arrest the movement of the bar C by coming in contact with the wall of the slot. The other end of the sliding bar is guided between upward projections t on the frame.

im n are upward projections or lugs on the sliding bar C.

F is a stop, which is provided with a sleeve p arranged to engage with the projection a on such bar. The stop, with the sleeve and tail piece, is held loosely in place on the stud p by means of a bolt or nut.

Two of myimproved dropping devices are designed to be used in a corn-planter, two sliding bars C being connected by a shakebar, as usual. The alternate teeth of the seedplate are acted upon by the pawls, but the stop F acts upon each tooth.

The operation is as'follows: Vhen the sliding bar C is at the end of its stroke, the stop F will be in engagement with some one of the teeth of the seed-plate, as shown in Fig. l. When the sliding bar C is moved in the direction indicated by the arrow in Fig. 2,the

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operating end z" of the 'pa'wl E will engage vvith one of the teeth on the seed-plate, causing it to rotate on the stud c, and as the seedplate rotates the tooth which was in engagement with the stop F Will cause the stop to rotate onits pivot o, bringing it into the posi tion shown in Fig. 2. As the sliding bar continues to move in the same direction, the lug n will engage with the tail-piece q on the stop, and gradually cause the stop to assume the position shown in Fig. 1, so that When the corn 1s dropped and at the completion of the movement of the sliding bar the stop will be brought into engagement with a tooth on the seed-plate, arresting its movement. When the sliding bar moves in the opposite direction, the operation will be substantially the same. Then the pawl D will act upon one of the teeth on the seed-plate, causing it to rotate, and such rotation willA first bring the stop into the position shown in Fig. 2, and as the movement of the plate continues the lug m will engage With the downward projection r on the stop, and it Will again loe brought into the position shown in Fig. 1, in which it will engage one of the teeth on the seed-plate and arrest its movement. The position of the acting parts t' c" of the pawls at the end of each stroke will be such that one of them will be nearly in engagement with one of the teeth of the seed-plate, so that the seed-plate will,

direction, the stop F holding it from movement in one direction and one of the pawls preventing its movement in the other direction. This stop cannot in use be brought into any position in which it will lock the seedplate and prevent its movement. The inner face of the stop is concaved to correspond with the conveXity of the teeth on the seed-plate.

Vhat I claim as new, and desire to secure by Letters Patent, is-

1. The combination of a rotating seed-plate, a pivoted stop to engage With the seed-plate and disconnected from other parts of the device, and a sliding bar carrying pawls arranged to act on the seed-plate and provided with lugs to act on the stop, substantially as and for the purpose specified.

2. The combination of a frame A, provided with a plate a, which carries the seed-plate andis provided With slots d, a rotating seedplate having teeth on its periphery, a sliding bar C, having upwardly-extendinglugs h, each carrying a stud g, and gravity-pawls D E, pivoted one on each of the studs g and arranged to engage with the teeth of the seed-plate, substantially as and for the purposes specified.

ALEXANDER HEARST. v Witnesses:

O. B. Tnnsr, CHAS. E. ULRICH. 

